Australian Dragonfly (Odonata) Larvae: Descriptive history and identification Author Theischinger, G. Author Endersby, I. text Memoirs of Museum Victoria 2014 2014-12-31 72 73 120 https://museumsvictoria.com.au/collections-research/journals/memoirs-of-museum-victoria/volume-72-2014/pages-73-120/ journal article 10.24199/j.mmv.2014.72.06 1447-2554 12213169 Austroaeschna (Austroaeschna) sigma Theischinger, 1982 Theischinger (1982 , 1993, 2002); Hawking & Theischinger (1999) ; Theischinger & Hawking (2006) ; Theischinger & Endersby (2009) . *Genus Austroaeschna , Subgenus Austroaeschna Selys, 1883 Only A. obscura can be distinguished from congeners on the basis of morphology. Four more species can confidently be identified by their distributions. Eungella area: A. christine ; south-eastern Queensland and New South Wales N of latitude Sydney: A. sigma ; south-eastern New South Wales south of approximately 35º30’S and Victoria except for the Grampians: A. multipunctata ; Grampians: A. ingrid . A. parvistigma is the only species in Tasmania . On the mainland it may, however, coexist in places with with A. sigma , A. multipunctata and A. ingrid . But, whereas the larvae of these three species inhabit running water often with rocky substrate, the larva of A. parvistigma is usually found only in swampy and boggy situations (Theischinger 2002, 2012; Theischinger & Endersby 2009 ).